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CVE-2020-26229

XML External Entity in Dashboard Widget

Severity
Low 3.7
Published
17 Nov 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
10.4.10
Also known as
GHSA-q9cp-mc96-m4w2
Sources
NVD, Project advisories (GitHub)

Description

TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability with current PHP versions of supported and maintained system distributions. At least with libxml2…

Affected software

SoftwareAffected versions
TYPO3Servers and applications · cpe:a:typo3:typo3
  • From 10.0.0 before 10.4.10
TYPO3Servers and applications · github:typo3/typo3
  • From 10.4.0 before 10.4.10

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-26229
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-26229
  • GitHub Advisory Database https://github.com/advisories/GHSA-q9cp-mc96-m4w2
  • github.com https://github.com/TYPO3/typo3/security/advisories/GHSA-q9cp-mc96-m4w2